Dracoulis, George; Lane, Gregory; Byrne, Aidan; Baxter, Allan; Kibedi, Tibor; Macchiavelli, A O; Fallon, P; Clark, R M
Structures above the two-particle isomeric states in 188Pb have been identified. Their properties imply the presence of three minima in the nuclear potential well, associated with spherical, oblate, and prolate deformations. The fragmented decay of the Kπ = 8-, 1 μs prolate isomer leads to the identification of the yrare collective band presumably based on the excited 0+ state. Analysis of the excitation energies, branching ratios, and E2 and E0 decay widths through a three-band-mixing model...[Show more]
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